Hi IBIS Users: Doran sent me the file, and I confirmed that the problem exists exactly as Doran reported. The problem is very isolated. It only occurs with the ibischk4 Version 4.1.0 release. This release only dealt with adding new features and did not include new BUG fixes. So we should be able to isolate this problem and issue a new release at a later time. At this time keep a copy of the older Version 4.0.2 parser available to verify any reported waveform mismatch error. This version and earlier ones are archived in the old_* directories. http://www.eda.org/pub/ibis/ibischk4/ Thank you Doran for reporting this. If people observe any differences in the results for any IBIS Vers 3.2, 4.0 or 4.1 files when checking with ibischk V 4.0.2 and V 4.1.0, please report them to the me. (I may need to see the file.) Bob CW - Doran David wrote: > Hello : > > I just tried running my open-drain IBIS model using > latest 4.1 parser (just released), and found major errors > like shown below. > > However my model passed clean using version 3.2 and 4.0.2 > parsers. Let me know if anyone else has similar errors > with 4.1 which were not flagged on previous parser, and > whether 4.1 is correct with these errors. I'm just surprised > that 4.0.2 and 3.2 passed the same model. > > Thanks! > > ------------- Begin Forwarded Message ------------- > IBISCHK4 V4.1.0 > > Checking drac_tc260_150.ibs for IBIS 4.1 Compatibility... > > ERROR - Model DRAC_TC260: The [Falling Waveform] > with [R_fixture]=34 Ohms and [V_fixture]=1.8V > has TYP column DC endpoints of 1.01V and 1.80v, but > an equivalent load applied to the model's I-V tables yields > different voltages ( 1.01V and 0.00V), > a difference of 0.01% and 178.36%, respectively. > > > (this was clean with old Parser 3.2 and 4.0.2) > > > ------------- End Forwarded Message ------------- > > -- Bob Ross Teraspeed Consulting Group LLC Teraspeed Labs 121 North River Drive 13610 SW Harness Lane Narragansett, RI 02882 Beaverton, OR 97008 401-284-1827 503-430-1065 http://www.teraspeed.com 503-246-8048 Direct bob@teraspeed.com Teraspeed is a registered service mark of Teraspeed Consulting Group LLC ----------------------------------------------------------------- |For help or to subscribe/unsubscribe, email majordomo@eda.org |with the appropriate command message(s) in the body: | | help | subscribe ibis <optional e-mail address, if different> | subscribe ibis-users <optional e-mail address, if different> | unsubscribe ibis <optional e-mail address, if different> | unsubscribe ibis-users <optional e-mail address, if different> | |or email a request to ibis-request@eda.org. | |IBIS reflector archives exist under: | | http://www.eda.org/pub/ibis/email_archive/ Recent | http://www.eda.org/pub/ibis/users_archive/ Recent | http://www.eda.org/pub/ibis/email/ E-mail since 1993Received on Fri Mar 18 07:47:48 2005
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